Vacuum pump system SCC 950
Servicing
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
37
9. Servicing
9.1. Servicing schedule
Component
Servicing interval
Vacuum pump
system
Inspect regularly for external damage or
leaks
Diaphragms and
valve plates
Change as soon as pumping capacity
decreases
Tab. 7
9.2. Cleaning
When cleaning, make sure that no liquids enter the inside of
the housing.
9.2.1. Rinsing the vacuum pump system
WARNING
Personal injury caused by poisoning or explosion
and damage to the vacuum system
When flushing the vacuum pump system with
inert gas, make sure that the gas ballast valve is
closed so no reactive or explosive mixtures can
form.
Before switching off the vacuum pump system, separate it from
the vacuum chamber and flush it with air (or with inert gas if
required for safety reasons) under atmospheric conditions
(ambient pressure) for about five minutes.
If inert gas is used: Connect the inert gas feed to the gas inlet
(Fig. 2/
18
, page 13) of the vacuum pump system and close the
gas ballast valve. The safety precautions in Chapter 3 must be
observed at all times.
9.2.2. Cleaning the vacuum pump system
Clean the outside of the vacuum pump system with a moist
cloth only. Do not use flammable cleaning agents.
9.2.3. Emptying collection flask on the suction and pressure
sides
Suction side
6. Hold the collection flask (Fig. 2/
9
, page 13) and simultaneously
remove the flask clip (
7)
; remove the collection flask.
7. Dispose of contents in collection flask according to local regu-
lations. Then rinse out collection flask.
8. Reattach collection flask.
